francisco and also connecting, paired connection in new york and washington and 111 -- aid and ashburn. yes, it might he is stormed. it might he got forbid some sort of malicious attack although i should say not something i sense the network engineers are losing a lot of sleep over. they are not very good targets in buildings from a cybersecurity standpoint. they are highly secure because of concerns about that and theft of the information inside that i was struck in talking to people and going to visit these places, essentially the higher up the food chain i got a people who owned and operated these buildings, the less concerned they were about talking about it in the less concerned they were about their physical security. in fact the greater concern, the greater concern was that if we don't know about what goes on inside and what the issues are facing those operators, the greater threat is in washington. the greater threat is the internet will be legislated in a way that is not the best thing for the healthy functioning of the network. >> host: andrew blum you named your book "tubes.